Hi. Last Year (June/July) I Tested For HIV Using A

Hi. Last year (June/July) I tested for HIV using a rapid test. Got a faint Test line and my mother (who is medical practitioner) suggested the test negative. I wasn't satisfied with the result though. In December we tested again first result had a strong control line and a very faint Test line, so we repeated and it was negative. Now, I tested yesterday and there was a faint line again, so I requested blood samples to the lab. Should I be worried about faint lines in a space of almost 12 months?